Flora of North America species comparison

erect to somewhat spreading, glabrous or pubescent.

appressed-puberulent when young.

alternate, odd-pinnate;

stipules present;

petiolate;

leaflets 7–13, blade margins entire, surfaces pubescent.

5–15 × 2–6 cm;

stipules distinct, relatively small;

leaflet blades elliptic to obovate or ovate, 15–30 × 10–20 mm, base cuneate, apex usually emarginate, mucronate, surfaces appressed-pubescent abaxially, glabrate adaxially.

4–6 × 3–4 cm;

bracteoles linear, 2 mm.

3–8-flowered, axillary, racemes;

bracts absent;

bracteoles present.

2–4 cm.

5–8 mm in flower, 10–12 mm in fruit.

papilionaceous;

calyx campanulate, lobes 5;

corolla bright yellow [orange- or brownish red], banner sometimes with red markings;

stamens 10, diadelphous;

anthers basifixed, opening laterally.

calyx actinomorphic or slightly zygomorphic, 5–8 mm, lobes linear to deltate, 1–3 mm;

banner 16–20 × 10–15 mm;

wings equaling or shorter than keel;

style pubescent apically.

legumes, stipitate, bladdery-inflated, straight [curved adaxially], ellipsoid-orbicular, indehiscent [opening apically], glabrate.

pale greenish brown, sometimes reddish proximally, 5–8 × 3 cm, papery.

ca. 10, orbicular-reniform;

hilum lateral.

3–5 mm.

= 8.

= 16 (Europe).